<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <button onclick="logA">button</button>
  </body>
  <script>
    const a = document.querySelectorAll("button")[0];
    let dog = "Keeshond";
    a.onclick = function logA() {
      fetch(`https://dog.ceo/api/breed/${dog}/images/random`).then((v) =>
        console.log(v.url)
      );
    };
  </script>
</html>
